I make sure that they're well used! Exhibit A and B: My track tires before and after LOL:
Seriously, though, OE tires are typically crap per what ktm525 and quadzilla said. The manufacturers want to get you through that all important 1st test drive and who cares if they're shot at 40,000 km? :-/ My wife's Q5's tires are due for replacement and they've got maybe 30,000 km on them. Cheap Dunlop V-rated all-season SUV tires. Why do you need a V-rated tire on an SUV anyway ??